Key to the Species of the Aridarum Burttii Complex

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1A. PistilPistil: The female reproductive part of a flower. late flowers confined to two rows embedded in the spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. ; inflorescence erect at anthesisAnthesis: The period during which pollen is presented and/or the stigma is receptive. .. 2
2A. Plants with rhizome creeping and rooting; leaf blades linearLinear: -lanceolateLanceolate: with prominently raised marginal veinVein: Venation types: A. midrib; B. primary lateral veins; C. interprimaray veins; D. secondary veins; E. collective veins; F. tertiary veins; G. basal ribs; H. basal veins. s; pistilPistil: The female reproductive part of a flower. late flower zone with a few vermiform staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s at base. Lowlands, Kalimantan Barat .. 📌Aridarum minimum
2B. Leaf blades broadly ellipticElliptic: , primary lateral veinVein: Venation types: A. midrib; B. primary lateral veins; C. interprimaray veins; D. secondary veins; E. collective veins; F. tertiary veins; G. basal ribs; H. basal veins. s prominently raised on both surfaces of blade; erect; pistilPistil: The female reproductive part of a flower. late flower zone with a few squat rhomboidRhomboid: al staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s at the base. Higlands, Kapit, Sarawak .. 📌Aridarum ashtonii
1B. PistilPistil: The female reproductive part of a flower. late flowers in several rows not embedded in the spadixSpadix: A spike of minute flowers closely arranged around a fleshy axis and typically enclosed in a spathe. ; inflorescence nodding at anthesisAnthesis: The period during which pollen is presented and/or the stigma is receptive. .. 3
3A. PistilPistil: The female reproductive part of a flower. late and staminate flower zones separated by a naked interstice equalling the staminate flower zone in length; staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s few, cylindric-clavateClavate: Club-shaped; thicker at the apex than at the base. , at base of staminate flower zone; stamenStamen: The pollen-producing reproductive organ of a flower. s and appendixAppendix: Sterile appendage at the end of a spadix. staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s verrucate .. 📌Aridarum kazuyae
3B. PistilPistil: The female reproductive part of a flower. late and staminate flower zones not separated by a naked interstice; staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s at base of staminate zone absent or globose; stamenStamen: The pollen-producing reproductive organ of a flower. s and appendixAppendix: Sterile appendage at the end of a spadix. staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s smooth .. 4
4A. StamenStamen: The pollen-producing reproductive organ of a flower. connective convex, distal rim rounded, smooth or slightly sulcateSulcate: Furrowed; grooved. ; staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s at base of staminate flower zone absent or closely resembling staminate flowers; thecaeThecae: One of the lobes of an anther in which pollen is produced. horns long, stiff, arching. Kalimantan Timur .. 📌Aridarum orientale
4B. StamenStamen: The pollen-producing reproductive organ of a flower. connective concave, distal rim serrate-dentate; staminodeStaminode: A sterile or abortive stamen, frequently resembling a stamen without its anther. s at base of staminate flower zone globose; thecaeThecae: One of the lobes of an anther in which pollen is produced. horns rather soft, short, straight. C. Sarawak (Kapit) .. 📌Aridarum burttii
 


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